Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-11-2024 11:57
Behavioral task
behavioral1
Sample
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe
Resource
win7-20240903-en
General
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Target
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe
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Size
192KB
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MD5
5d3781d01a072727ceaf41e54b6faad2
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SHA1
c8ab2f99c7562ec176511a6f80c8cfcfbb0de277
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SHA256
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c
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SHA512
7931adcdb59bb758b4d1a53f660bc4a1495a4a3bd454ef22d651ac7405bb25df3cadca22f27fb39c43e9606a0b6364cd761cd524a4389a55f0dfd3b84c0c51d6
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SSDEEP
3072:gAwixCZ6Sh77R2Gpf606U8v0e7OIgPDFIbbzhPM67fIhO:gExhk7rh7NEOIYWlPM6r6O
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
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Urelas family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 1100 biudfw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exedescription pid Process procid_target PID 1508 wrote to memory of 1100 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 83 PID 1508 wrote to memory of 1100 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 83 PID 1508 wrote to memory of 1100 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 83 PID 1508 wrote to memory of 4712 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 84 PID 1508 wrote to memory of 4712 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 84 PID 1508 wrote to memory of 4712 1508 862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe"C:\Users\Admin\AppData\Local\Temp\862a38f6e34687da7183713e8246e8c3d7b4d6eca9fafb36da705683b14ef60c.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Users\Admin\AppData\Local\Temp\biudfw.exe"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1100
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:4712
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
192KB
MD52559f0cc17631851e6165afd07b76556
SHA1af7e41555c0d9c2aa127da4245cfc6645a37445a
SHA2560e037e00eab3a72b51d6ba2932fdf8986c4598d577ef3645d0384423990fbfd6
SHA512c0b8a2cabcd4196a2a0041e019d365e93915ffed30a9a9e0efd8fdfa624af447b9352544f94ecbc44a44806e697c9d6051535b73dea7eadafaf02ffb42475f0c
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Filesize
512B
MD52776cde4761cefd1198f4712989957b1
SHA1c801245a080524e704e8e3da95700e58e9d1ca3c
SHA25669ca5964abf7f1c054541bcc32f2712d3fa51342913affed5023825e3dca521f
SHA512bdc242f5c69d10cbfa903bbf20448a9e93213ee303091f1ae9ff8d29c83250168491d9b553841f8ed9b756aef29c499eea3562ff9f94b5619012eb21d5d88c4a
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Filesize
338B
MD5c72b0dbc2accb020ba8189860fcf2362
SHA15a1f10a1829006cdc073619262ccc504524f39ee
SHA25687760fd1e929aac24d76876d4066670b956112e180a46f9e4bf4ea2a3edd4c03
SHA5124e77fe1c41c63f154387004a39a120f6c420917ccf6df478bd9c30918ed59f7ae17a2b10fbd7d90511e8e0d69b04f561bb7e5c50f5b3f28bbb46a309097b5990